EP 1838081 A4 20110330 - ENCODING DEVICE AND METHOD, DECODING DEVICE AND METHOD, AND TRANSMISSION SYSTEM
Title (en)
ENCODING DEVICE AND METHOD, DECODING DEVICE AND METHOD, AND TRANSMISSION SYSTEM
Title (de)
KODIERUNGSVORRICHTUNG UND VERFAHREN, DEKODIERUNGSVORRICHTUNG UND VERFAHREN SOWIE ÜBERTRAGUNGSSYSTEM
Title (fr)
DISPOSITIF ET PROCEDE DE CODAGE, DISPOSITIF ET PROCEDE DE DECODAGE ET SYSTEME DE TRANSMISSION
Publication
Application
Priority
- JP 2006322949 W 20061117
- JP 2005334243 A 20051118
- JP 2006007256 A 20060116
Abstract (en)
[origin: EP1838081A1] The present invention relates to an encoding device and method, a decoding device and method, and a transmission system, wherein image data which is subjected to compression encoding and sent out can be output as decoded images at the receiving side in a short time. At the time of wavelet transformation, filtering processing is performed in increments of lines, with a number of lines, whereby coefficient data for one line worth of lowest band component is generated, as an increment. At the first time, processing of line No. 1 through line No. 7 is processed, highband component coefficient C1, coefficient C2, and coefficient C3, and lowband component coefficient Ca, coefficient Cb, and coefficient Cc, are generated at division level = 1, and at division level = 2, highband component coefficient C4 and lowband component coefficient C5 are further generated from coefficient Ca, coefficient Cb, and coefficient Cc. These coefficients are rearranged in the order from lowband to highband, and supplied to a synthesizing filter. The synthesizing filer performs filtering processing of the coefficients in the order in which they were supplied, generates image data, and outputs.
IPC 8 full level
H04N 1/41 (2006.01); G06T 9/00 (2006.01); H03M 7/30 (2006.01); H03M 7/40 (2006.01); H04N 1/413 (2006.01); H04N 19/00 (2014.01); H04N 19/196 (2014.01); H04N 19/436 (2014.01); H04N 19/46 (2014.01); H04N 19/51 (2014.01); H04N 19/63 (2014.01); H04N 19/70 (2014.01); H04N 19/85 (2014.01)
CPC (source: BR EP KR US)
G06T 9/00 (2013.01 - KR); H03M 7/40 (2013.01 - KR); H04N 1/41 (2013.01 - KR); H04N 19/129 (2014.11 - EP US); H04N 19/436 (2014.11 - BR EP US); H04N 19/61 (2014.11 - EP US); H04N 19/63 (2014.11 - EP US); H04N 19/647 (2014.11 - EP US); H04N 19/129 (2014.11 - BR); H04N 19/13 (2014.11 - BR EP US); H04N 19/61 (2014.11 - BR); H04N 19/63 (2014.11 - BR); H04N 19/647 (2014.11 - BR)
Citation (search report)
- [XA] US 6707948 B1 20040316 - COSMAN PAMELA CAREN [US], et al
- [X] CHRISTOS CHRYSAFIS ET AL: "Line-Based, Reduced Memory, Wavelet Image Compression", IEEE TRANSACTIONS ON IMAGE PROCESSING, IEEE SERVICE CENTER, PISCATAWAY, NJ, US, vol. 9, no. 3, 1 March 2000 (2000-03-01), XP011025538, ISSN: 1057-7149
- [A] PATRICE ONNO-CANON RESEARCH CENTRE FRANCE ED - JOINT PHOTOGRAPHIC EXPERT GROUP (JPEG): "Report on Core Experiments CodEff7: Low memory line-based wavelet transform using lifting scheme. Revision 1", JOINT PHOTOGRAPHIC EXPERT GROUP CONFERENCE, CROWBOROUGH : JPEG FORUM LTD, GB, 4 August 1998 (1998-08-04), XP017205163
- See references of WO 2007058294A1
Citation (examination)
US 6259735 B1 20010710 - AONO TOMOKO [JP], et al
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 1838081 A1 20070926; EP 1838081 A4 20110330; BR PI0606733 A2 20100209; BR PI0607204 A2 20100209; BR PI0607204 B1 20190409; EP 1901544 A1 20080319; EP 1901544 A4 20110330; EP 1901544 B1 20180926; JP 4888729 B2 20120229; JP 4900720 B2 20120321; JP WO2007058294 A1 20090507; JP WO2007058296 A1 20090507; KR 101320534 B1 20131022; KR 101377021 B1 20140326; KR 20080069903 A 20080729; KR 20080071482 A 20080804; RU 2339997 C1 20081127; TW 200727598 A 20070716; TW 200746655 A 20071216; TW I336570 B 20110121; TW I341658 B 20110501; US 2009102686 A1 20090423; US 2009274378 A1 20091105; US 7701365 B2 20100420; US 8320693 B2 20121127; WO 2007058294 A1 20070524; WO 2007058294 B1 20070719; WO 2007058296 A1 20070524; WO 2007058296 B1 20070802
DOCDB simple family (application)
EP 06832828 A 20061117; BR PI0606733 A 20061117; BR PI0607204 A 20061117; EP 06832832 A 20061117; JP 2006322949 W 20061117; JP 2006322953 W 20061117; JP 2007524111 A 20061117; JP 2007545308 A 20061117; KR 20077016423 A 20061117; KR 20077018759 A 20061117; RU 2007131282 A 20061117; TW 95142291 A 20061115; TW 95142292 A 20061115; US 81425706 A 20061117; US 81643206 A 20061117